Join them and secretely kill all of them...

Get my army of rabbits to jump on their heads.

Obvi :3

Shoot them with lasers while screaming "EXTERMINATE!!!"

Try n kill them

Use my mage powers and blow them all away with my fire dragon's roar

Fight back !
I gotta admit mom said Thieves these days are dumb :/

Nuttin

Two word ........... NINJA SMOKE!!!

Try and lick them cus i can c:

I dunno why they would want to mug me, I don't have anything valuable anyway...

Do the harlem shake then run

This isn't offtopic so I'll say it,

A week ago my brother got surrounded by thieves and wanted either money or his phone. My brother had about $1600 in his pocket (why he did I'll never know) and gave it to them after been jabbed with a broken bottle a few times.
My mom said he should have THROWN the money around him before getting beat up and then have fled. Maybe take a few people out and go get the police.
There you go folks. My mom is a survialist.

ahem THROW THE CHEESE

Well I really wouldn't have anything on me so, lets wait until it happens :)

Turn into the flash and run away.
I'm naturally fast, lol comes in handy

I'd do something

Crawl underneath their legs and kick em...then run to the nearest police station and grab the nearest weapon i can find.

get my brothers air rifle
OR
get a frying pan.
OR...
get a bike SO I CAN SQUISH DEM TO DEATH HAHAHAHA!
or
rip the pole off the trampoline and poke them

people underestimate my physical capability due to my body and posture so i have the advantage
obviously you shouldn't scream before taking action or they would just hurt you somewhere and duct tape your mouth
just grab something hard around the area like a rock or shoe
throw it at someone weaker and smaller than you, with a weapon hopefully, and immediately run to that person while that person is distracted
jab the person's neck with a flat, open hand and chop the nape, hopefully enough to paralyze
use the person as a human shield and take the person's weapon
if it's a knife, only threaten to kill the shield and quickly back away
and if it's a gun, aim for their clumps of people and shoot at the stomach area of the people in the center of the clumps until the bullets are all used up
try not to kill anyone
if the person doesn't have a weapon, just stick your fingers into the person's eyes and use the person as a shield and quickly walk away
then run into a crowded public place

ignore all pain

the more distracted they are, the better
so it's best to shout and scream a lot

blameless self-defense